during winter with freezing temperatures outside, even after just being out for 1 minute, i need like 10 warmup sets till im ready to go.

maybe some permabulker fatsos need less warmup i dont know.

but even in hot spanish summer weather,i went to the gym, and did arms, one set of skullcrushers for warm up and then tried to go for the actual training, not even much weight, and boom, both triceps injured.

i seen ppls biceps tear on 20lbs dumbells bc they didnt warm up properly.

Agreed on that, but after you are warm on the first exercise on a body part why keep warming up?